Ch1 - Invitation to Biology Flashcards
Which key features of living organisms is best described as the transmission of DNA from parents to offspring?
Inheritance
What is the main source of energy for producers?
Sunlight
When energy is transferred from one organism to another, some energy is lost to the environment do primarily to what?
The release of heat
_____ involves an increase in volume, cell number, or cell size, and is powered by energy derived from ______
Growth; Nutrients
Energy from the sun is directly harnessed by _______, which can be ________ by other organisms
Producers; Consumed
What is biology?
The scientific study of life
What are the smallest units of life?
Cells
What are the components of organ systems?
Organs, tissues, and cells
What is the fine as a community interacting with its environment?
Ecosystem
What are the key features of life?
- organisms sense in response to change in their environment
- genetic information in the form of DNA is passed to offspring
- organisms are composed of one or more cells
- life is sustained by inputs of energy and new chains
What are the cellular activities that sustain a single cell organism through its lifetime?
- increase in cell size and volume
- processed by which individuals produce offspring
- the transmission of DNA to offspring
What is a process in which organisms keep their internal conditions within tolerable ranges by sensing and responding appropriately to change?
Homeostasis
What is a protist?
A common term for a eukaryote that is not a fungus, plant, or animal
What are the two components of the scientific name of a species in the Linnaean system?
Scientific epithet and Genus
In taxonomy, what traits have been used to classify species?
- geographic distributions
- differences in DNA sequences
anatomical features
